Alforsite

Alforsite is a mineral, Ba5Cl(PO4)3, composed of barium, phosphorus, chlorine, and oxygen. It was discovered in 1981, and named to honor geologist John T. Alfors (1930-2005) of the California Geological Survey (formerly California Division of Mines and Geology) for his work in the area where it was discovered.
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General Information:
 Chemical Formula:
Ba5(PO4)3Cl
 Composition:
(Molecular Weight = 1,007.00 gm)
Barium 68.19 % Ba
Phosphorus 9.23 % P 
Chlorine 3.52 % Cl
Oxygen 19.07 % O 
 Empirical Formula:
Ba5(PO4)3Cl
 IMA Status:
Approved IMA 1980
 Locality:
TL: Big Creek - Rush Creek sanbornite, deposit, 5 miles NE of Trimmer, Fresno County, California.
Physical Properties:
 Color:
colorless.
 Density:
4.73
 Diaphaniety:
Transparent
 Hardness:
5 - Apatite
 Luster:
Vitreous (Glassy)
 Streak:
white
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